VioHandle (HVIO) - input

VIO presentation-space handle.

Reserved. Must be 0.

rc (APIRET) - returns

Return code.

VioScrlUnLock returns one of the following values:

• NO_ERROR 367
  ERROR_VIO_UNLOCK
  421
  ERROR_VIO_INVALID_PARMS
  430
  ERROR_VIO_ILLEGAL_DURING_POPUP
  436
  ERROR_VIO_INVALID_HANDLE

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